Finding the Fourth Proportional to 1,610.47, 2,222.46 and 902.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,610.47 : 2,222.46 = 902.35 : x
2. Step 2: Convert to fraction form
   1,610.47/2,222.46 = 902.35/x
3. Step 3: Cross multiply
   1,610.47x = 2,222.46 × 902.35
4. Step 4: Simplify right side
   1,610.47x = 2,005,436.78
5. Step 5: Solve for x
   x = 2,005,436.78/1,610.47
6. Step 6: Final answer
   x = 1,245.25